ARM7 MCUs prioritise serial connectivity and data-throughput efficiency

NXP Semiconductors has two families of MCUs that combine the compact, high-performance 72MHz ARM7TDMI core with rich serial connectivity peripherals including 10/100 Ethernet, full-speed USB, and CAN 2.0B to satisfy communication-gateway, protocol-converter and user-interface applications.

The LPC23xx and LPC24xx families build on the underlying efficiency of the ARM7TDMI core with enhanced features such as an additional Advanced High-performance Bus (AHB) dedicated to Ethernet transactions, and a Vectored Interrupt Controller (VIC) boosting the CPU’s interrupt-handling capacity to 32. The enhanced bus structure of these MCU families allows concurrent instruction fetches with handling of Ethernet packets and peripheral transactions for maximum data-throughput efficiency.

Other industry-standard serial interfaces include an SPI interface, two Synchronous Serial Ports (SSP), three I²C interfaces and an I²S interface. The LPC23xx family operates as a USB full-speed device, while the LPC24xx adds USB host capabilities by implementing a full-speed Device/Host/OTG controller. The LPC24xx devices also implement a memory interface supporting off-chip SDRAM, SRAM or Flash memories. Both families have up to 512 kbytes of integrated Flash, as well as on-chip SRAM blocks for CPU access, DMA access and general-purpose use.

 

FEATURES On-chip colour-LCD controller (LPC24xx) Power-saving features Versatile timers and PWMs SD/MMC interface 100-pin package options (LPC23xx) 208-pin packages (LPC24xx)

APPLICATIONS Industrial controls Medical instruments Protocol converters Communication systems

 

 

 

The Keil MCB2300 and the LPC2468 USB stick are available to members of the Future Board Club. To apply for the development board, and membership of the Board Club, go to www.my-boardclub.com/manf-offers.htm This offer is free and subject to qualification.

 

NXP Semiconductors / ARM7 LPC23xx/LPC24xx